--- Slim/Control/Request.pm     (revision 22005)
+++ Slim/Control/Request.pm     (working copy)
@@ -841,6 +841,15 @@
                $parrayref
        );
 
+       # find the caller and stash in source
+       my $frame = 1;
+       my $sub;
+       do {
+               $sub = (caller($frame++))[3];
+       } while ($sub && $sub =~ /::execute$/);
+
+       $request->source($sub);
+
        if (defined $request && $request->isStatusDispatchable()) {